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Texas Instruments LMR38010/LMR38010-Q1 SIMPLE SWITCHER® Synchronous Buck Converters are intended to regulate over a wide input voltage range, minimizing the need for external surge suppression components. The LMR38010 operates during input voltage dips as low as 4.2V, at nearly 100% duty cycle if required. This operation allows the LMR38010 to be an excellent choice for wide-input industrial applications and MHEV/EV systems.
The TI LMR38010/LMR38010-Q1 Buck Converters utilize precision enable to deliver flexibility by allowing a direct connection to the wide input voltage or precise control over device start-up and shutdown. With built-in filtering and delay, the power-good flag permits an accurate indication of system status, eliminating the need for an external supervisor. The converters combine pseudorandom spread spectrum for minimal EMI. Meanwhile, the device can configure a switching frequency between 200kHz and 2.2MHz to avoid noise-sensitive frequency bands. In addition, the LMR38010 can select the frequency for improved efficiency at a low operating frequency or a smaller solution size at a high operating frequency.
Built-in protection features on the LMR38010 include cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.
The LMR38010/LMR38010-Q1 is housed in an 8-pin, 4.89mm × 3.90mm HSOIC PowerPAD package. The LMR38010-Q1 devices are AEC-Q100 qualified for automotive applications.
